Accounts Receivable, Sales and Allowances (Tables)

3 Months Ended

Mar. 31, 2019

Summary of net trade accounts receivable

Trade accounts receivable, net consists of the following (in thousands):



	March 31, 2019			December 31, 2018
Gross accounts receivable (1)	$	361,065		$	308,305
Less reserves for:
Chargebacks (2)	(67,474		)	(55,312		)
Rebates (2)	(74,723		)	(55,963		)
Product returns	(34,411		)	(35,146		)
Discounts and allowances	(7,740		)	(6,561		)
Advertising and promotions	(1,769		)	(1,574		)
Doubtful accounts	(623		)	(623		)
Trade accounts receivable, net	$	174,325		$	153,126

(1) The increase in the Gross accounts receivable balance as of March 31, 2019, when compared to the December 31, 2018 balance is due to higher accounts receivable carryover due to timing of sales during the compared period.

(2) The increase in the Chargebacks and Rebates balances as of March 31, 2019, when compared to the December 31, 2018 balance were primarily due to payment timing, product mix, customer mix and higher wholesaler inventory.

Schedule of adjustments to gross sales

For the three month periods ended March 31, 2019 and 2018, the Company recorded the following adjustments to gross sales (in thousands):



	Three Months Ended March 31,
	2019			2018
Gross sales	$	458,641		$	520,533
Less adjustments for:
Chargebacks (1)	(205,394		)	(223,963		)
Rebates, administrative and other fees (1)	(64,264		)	(92,279		)
Product returns (2)	(11,902		)	(7,121		)
Discounts and allowances	(9,050		)	(10,238		)
Advertising, promotions and others	(2,160		)	(2,869		)
Revenues, net	$	165,871		$	184,063

(1) The decreases in chargebacks and rebates, administrative and other fees for the three month periods ended March 31, 2019 as compared to the same periods in 2018, were primarily due to volume declines as well as product mix and customer mix.

(2) The increase in product returns for the three month periods ended March 31, 2019, as compared to the same periods in 2018, was primarily due to the timing of returns processing.